<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<input type="text" placeholder="请输入1-100之间的整数">
<input type="button" value="猜一猜" onclick="f()">
<div></div>

<script>
    //获取1-100 的随机整数
    let x = parseInt(Math.random()*100)+1;
    console.log(x);
    let count = 0;
    function f() {
        count++;
        // 得到文本框
        let i = document.querySelector("input");
        let d = document.querySelector("div");

        if(i.value>x){
            d.innerText ="猜大了！";
        }else if(i.value<x){
            d.innerText ="猜小了！";
        }else {
            d.innerText= "恭喜你第"+count+"次猜对了！"
        }
    }
</script>
</body>
</html>